# Questions on Algebra: Graphs, graphing equations and inequalities answered by real tutors!

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 Question 132888: Could someone explain to me how you know aif a graph is a function. here are three points to work with. (-4,9) (2,2) (8,8) Click here to see answer by jim_thompson5910(29613)

 Question 132981: As a returning adult student, I feel so very stupid. This is from an on line course. The linear equation is 4x-1=3x+15 I have solved the equation with x=16 and y=63. Now they are asking to solve the solution by graphing. When I do the "T" chart, my lines run parallel when they should intersect at 16.. what in the world am I doing wrong??? Thank you Click here to see answer by vleith(2825)

 Question 132976: how do you plot fractions on a graph Click here to see answer by nycsharkman(136)

 Question 133009: Hello:) Please help me with this question: Find the equation of the line through the given pair of points in standard form using only integers (-4, 3) and (5,6) Thank You! Click here to see answer by jim_thompson5910(29613)

 Question 133039: Could someone help me graph these two lines? Click here to see answer by stanbon(60771)

 Question 133040: I need some help solving this system of equations by graphing.What is the solution of the system of equations, and are they consistent/independent? Click here to see answer by jim_thompson5910(29613)

 Question 133035: COuld someone help me graph this problem??? Graph Click here to see answer by vleith(2825)

 Question 133026: how do i solve the eguation to find the intersection of the graph? Click here to see answer by solver91311(18785)

 Question 133211: Find the distance between the points, and find the midpoint of the line segment joining them? (9,8) and (2,1) Click here to see answer by jim_thompson5910(29613)

 Question 133212: Find the slope of the line described? A line perpendicular to -4x+4y=-2 Click here to see answer by stanbon(60771)

 Question 133213: Find the equation of the line through the given pair of points in standard form using only integers? (-4,-1) and (5,8) Click here to see answer by jim_thompson5910(29613)

 Question 133357: Find the points of intersection of the ellipse 16x^2 + 25y^2 = 400 and the line 5y + 4x = 20 Click here to see answer by jim_thompson5910(29613)

 Question 133361: i was wondering on how to solve this equation x^2-9x-14=0. i know how to solve those problems but there are no factors of -14 that add to -9. So your help is needed! Click here to see answer by stanbon(60771)

 Question 133451: can you help me graph the equation usin the slope intercept or using the intercept procedure (finding the x and y intercepts by substitutng zero) 4x+y=5 3x-2y=6 3y=5 y=2x+8 Click here to see answer by vleith(2825)

 Question 133489: I'm having promblems understanding how to find the info i need to graph this equation..... I could possibly have the wrong equation. L x 15 -L ( this is the eqution I came up with) the original equation is .... The rectangle has a perimeter of 30 meters and a side length of l, A=? Thank you for your help Click here to see answer by solver91311(18785)

 Question 133579: Anybody please help... Solve. 2(2x-3) < 6 - the solution set is {x | x < ? } 3(3+4x) -8 > 109 (the arrow is underlined) the solution set is {x | x > ?} 3(2y - 7) > 4(3y +4) Use set builder to describe the solution {y | y ?? } Please i have no clue...help Click here to see answer by jim_thompson5910(29613)
 Question 133579: Anybody please help... Solve. 2(2x-3) < 6 - the solution set is {x | x < ? } 3(3+4x) -8 > 109 (the arrow is underlined) the solution set is {x | x > ?} 3(2y - 7) > 4(3y +4) Use set builder to describe the solution {y | y ?? } Please i have no clue...help Click here to see answer by Earlsdon(6294)

 Question 133623: i have a Question that says 5y=2x+4+3y+2x+6 and i do not understand how to get the slope-intercept form of that equation so please tell me what to do because i do not what to fail the test because i dont know how to get the answer and a big hand to the people who maked it where we could send our problems thank a whole bunch Click here to see answer by vleith(2825)

 Question 133736: HELP please... Solve using the addition principle. 2x + 5 < x+4 (the arrow is underlined) The solution set is {x|x< ?} Solve using the multiplication principle. 5x>-4 (the arrow is underlined) Translate to an inequality A number is at least 14 (the answer is ? ? ?) Use x as a variable Click here to see answer by dolly(163)

 Question 133888: Determine whether the function is symmetric with respect to the y-axis,symmetric with respect to the origin ,or none of these. f(x)=-5x^3+2x, Given. f(-x) = -5(-x)^3 + 2(-x) =5x^3 - 2x which is not equal to f(x). A function y =f(x) is symmetrical about Y axis iff f(x) = f(-x). Hence f(x) is not a symmetrical function. Click here to see answer by Ganesha(13)

 Question 133916: Again, i need someone to come to the aid of an old lady..Thank you so much How do you know if a value is a solution for an inequality? How is this different from determining if a value is a solution to an equation? If you replace the equal sign of an equation with an inequality sign, is there ever a time when the same value will be a solution to both the equation and the inequality? Write an inequality and provide a value that may or may not be a solution to the inequality. Click here to see answer by Earlsdon(6294)

 Question 134098: Help me please..... Translate to an inequality. Use the variable x My salary next year will be at least \$45000. a) x > \$45000 b) x > \$45000 (arrow is underlined) c) x < \$45000 d) \$45000 > x (arrow is underlined) Click here to see answer by vleith(2825)

 Question 134198: Draw the graph of y=(3/2)x - 4 using only the slope and the y-intercept. Click here to see answer by jim_thompson5910(29613)

 Question 134196: Graph the inequality: y < (1/2)x + 1 Click here to see answer by jim_thompson5910(29613)

 Question 134107: Using the information provided, find the parallel and the perpendicular equation. Graph all three equations on a grid. 1. Y=4x+8 (2,5) Parallel equation: Perpendicular equation 2. y=3x-5 (6,9) Parallel equation: Perpendicular equation: 3. y=-5x+3 (-2,-3) parallel equation: Perpendicular equation: Click here to see answer by algebrapro18(206)

 Question 134222: Could anyone please offer their help on this one? I studied the text and can't figure this out. Thank You. Compare the graph of the given quadratic function f with the graph of y=x^2. f(x)=(x-2)^2+3 Thanks again! Click here to see answer by jim_thompson5910(29613)

 Question 134276: Use the graphing tool to graph the line. Use the intercepts when drawing the line. If only one intercept is found use it and another point to draw the line. 3x-9=3y Help please! Click here to see answer by jim_thompson5910(29613)

 Question 134281: find the slope if it exists. There is a pic of a box with tiny squares inside the box and a line with (-5, 3) and (5, -2) do i just subtract the -5 and -2 and add the other 2? Click here to see answer by jim_thompson5910(29613)

 Question 134288: Graph the equation and identify the y intercept x+5y=10 Would this be 5? Click here to see answer by jim_thompson5910(29613)

 Question 134284: Use the intercepts to graph the equation. -x+4y=8 Click here to see answer by jim_thompson5910(29613)

 Question 134321: I need some help on how they come up with this answer as follows #33 2,(0,3) the question is Find the slope and y-intercept for each line that has a slope and y-intercept #33 2x-y+3=0. please explain how they got the above answer. Thank you so much in advance Click here to see answer by scott8148(6628)

 Question 134363: How can I graph this inequality in the x and y-axis? I need it in only one x and y plane... PLEASE HELP I TRIED IT MORE THAN ONES..PLEASE THE THREE FIST ONES HAS FRACTIONS THEY ARE NOT DIVISION.. y>= -10/7x+10 y is less than or equal to negative ten over 7x plus ten y>= -9/8x+17/8 y is less tan or equal to negative 9 over 8x plus 17 over 8 y<= -11/7x+18/7 y is greater than or equal to -11 over 7x plus 18 over 7 y<= -2x+3 y is greater than or equal to negative 2x plus 3. Click here to see answer by stanbon(60771)